SPRUJ28E November 2021 – September 2024 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
For HS devices, ROM supports encryption of images optionally when specified with the Encryption extenstion.
Encryption - Encryption of the components must be specified with a new extension called ext_boot_enc. This is an optional extension that must be specified only if any of the components are encrypted with a customer key set. Specify a component number followed by encryption extension details for ROM to decrypt the given components. This extension is used only with combined boot image format (that is, using Extended Boot Info Extension).
Prime vs Non-Prime - The main difference between HS prime and non-prime devices is the presence of the SYS-FW Inner certificate. Extended boot info extension supports both prime and non-prime devices. ROM supports SYS-FW binary as Comp#2 in all device types; for HS-SE non-prime and HS-FS devices, the SYS-FW inner certificate is expected as another optional component in #3, 4, or 5.